I don't think you can while the claim is pending. In my claim, there's a line in the thread header on the first page which reads:

Files: [Browse...] No file selected.

You click on the [Browse...] button to choose your file.
Right above that line is another which allows you to adjust the claim's percentage of completion.
Finally, at the bottom right of the claim description, you'll find an [Update claim] button. Once you have your file selected and level of progress updated, you just click that button and it will update the claim.
_________________"The "drunks" are hopefully leading the "sober" in the right direction. They're just not heading there in a straight line...." - Kovacius

Please no interiors or monsters/NPCs. They will be placed later with respect to consistency of the whole region. You may however create bandit camps, entrances to cave interiors etc. and make notes about their intended purpose for interior/NPC makers that they may (or may not) take into consideration.

However if you have some more ambitious plan (like including some smaller settlement or larger ruin), it is good to discuss it here first to make sure it goes well with the intended design and purpose of this area.
_________________THEO

Please no interiors or monsters/NPCs. They will be placed later with respect to consistency of the whole region. You may however create bandit camps, entrances to cave interiors etc. and make notes about their intended purpose for interior/NPC makers that they may (or may not) take into consideration.

However if you have some more ambitious plan (like including some smaller settlement or larger ruin), it is good to discuss it here first to make sure it goes well with the intended design and purpose of this area.

I was just unaware of the process of monsters/bandits placing.

Where do I make these notes and what is the proper form of doing them?

After a first look it seems fine to me. Perhaps I would not place the fisherman house that close to that other building. In TES III two buildings that close together already give an impression of a small settlement.
_________________THEO

After a first look it seems fine to me. Perhaps I would not place the fisherman house that close to that other building. In TES III two buildings that close together already give an impression of a small settlement.

No, I think those are just the Nordic buildings already in your claim. That map just reflects what is already there; even if you deleted them it wouldn't really be an issue, the map would just have to be changed.
_________________"The "drunks" are hopefully leading the "sober" in the right direction. They're just not heading there in a straight line...." - Kovacius

Not so much an update request as asking whether you still plan on working on this. If so, you can keep holding on to it, no problem. If not, this will likely get merged with the rest of Uld Vraech to be worked on again when the Uld Vraech section opens up.
_________________"The "drunks" are hopefully leading the "sober" in the right direction. They're just not heading there in a straight line...." - Kovacius

I'm Trying to upload a new version but I completely forget how to use TES Advanced mod editor to clean the file.
I thought there was guide here at some point, any help would be great because I'm about 75% done this claim.